Hot-blast radiator.



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MOSES L. FOOTE AND WILLIAM M. KINGSBURY, 0F CLEVELAND, OHIO.

HOT-BLAST RADIATOR.

Specification of Letters Patent.

Patented Jan. 21, 1919.

Application filed March 5, 1918. Serial No. 220,562. I

To all whom it may concern:

Be it known that we, Mosns L. FooTn and WILLIAM M. KINGsBURY, citizens of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Hot-Blast Radiators, of which the following is a specification.

Our invention has relation to that class of radiators which are used in heating air driven over same by mechanical force, and adapted for the reception of steam at high or low pressure or any other heat conducting fluids or liquids. The several improve ments hereinafter specified may, however, be employed advantageously in radiators of the class known as in-direct radiators, or those which are located in an air-conducting flue at a distance from the space to be heated.

An object of our present invention is, to simplify the construction, reduce the cost of radiators by reducing the number of separate pieces and the number of joints to be made u and we attain this object, among others, y means of the construction and arrangement of parts, and the ease of assembling of the devices hereinafter described, by which the fluids shall be suitably sub-divided within the structure, causing a positive circulation and air expulsion through the loops, and exposing a large heating surface of metal to the air to be heated, and to so arrange and construct the sections that it may be made of cast or other metal, being united by what is known as a slip-nipple joint secured together by means of bolts or screw joints for assembling and it can be readily united for use or dis-united for repairs.

The heating surface of loops consists of a series of extended projections cored out, tapered and curved, which allows for expansion and eliminates any possible water deposits. There is no chance of retarding the air as the projections are spaced equally and formed so as to split the air, and the friction is reduced by the projections being so formed that three rows of projections are splitters while two inner rows are circles designed to rap the air which makes impingement perfect and all sides effective. The resistance can be increased or decreased by a variation of the connections. These projections or extended heating surface are set on an angle running horizontally.

The internal construction of each section is divided into three parts, the center chanr her and two outer chambers. The center chamber receives the fluids or liquids at the bottom thereof and conveys same to the top of the section for distribution to the outer chambers without coming in contact with the fluids or liquids of the outer chambers.

purpose of preventing pressure entering from outer or other chambers.

To accomplish all of this, our improvements involve certain novel and useful peculiarities of construction, relative arrangements, or combinations of parts and details of manufacture, all of which will be herein first fully described and then pointed out in the claims.

In the accompanying drawing, forming part of this specification,

Figure 1 is a side elevation of a radiator section;

Fig. 2 is an end elevation of the radiator section;

Fig. 3 is a section thereof on the line BB of Fig. 2;

Fig. 4 is a section thereof on the line DD of Fig. 8;

Fig. 5 is a section on the line F-F of Fig. 3;

Fig. 6 is a top view.

The heater consists of a series of sections of the vertical type and as the sections are practically identical a description of one will answer for all.

Each section consists of an outer wall or casing 6 with an internal U-shaped partition 7 extending lengthwise therein. The bend or lower end of this partition extends around the inlet opening 8 for the steam or other heating medium, and the upper ends of this partition are spaced away from the top 9 of the section. Thereby a passage for circulation is formed leading upwardly from the opening 8 between the walls of the part 7 and connecting at the top with the outer inlet and outlet bosses, respectively.

The side walls of each section are formed with symmetrical rows of cored projections as shown, some of these projections being circular as indicated at 15 and some being somewhat oval shaped as indicated at 16, but with sharp edges 17 presented in a direction parallel to the flow of air transversely of the sections, as is usual in force flow or hot blast systems of the kind referred to.

It will be noticed that the rows of projections provided with the sharp edges are Y arranged in alternation with the rows of circular. projections, as shown, the two outer and the middle rows being of the former type, and the rows of circular projections intervene. As the air flows across or through a battery of these sections it will be divided by the outer row and will then pass around the projections of the neXt row which are respectively located in line with the openings between the projections of the outer row. The efiect of this is to equally distribute the air across the entire surface of the radiator, whereby it is uniformly and effectively heated.

The assembled sections are secured. to gether by bolts 20 which engage in notches 21 formed at the outer edges of the sectious. These bolts are placed adjacent to the nipple connections, so that the nipples may be drawn tight, and by removing the bolts and separating the sections somewhat, any section can be removed and replaced, without loosening all the sections or joints of the battery.

In the lower part of each section there is provided a curved wall or trap 22 extending across the section. This is spaced somewhat below the bend of the U-shaped partition 7, which is provided at its lowest point with a drain opening 23, and with two depending fianges 2A, which dip into the cup or recess formed by the part 22, providing a water seal or trap which allows the escape of condensation and prevents the escape of steam.

The circulation of steam from its inlet at 8 is upwardly between the branches of the partitions 7 and over the top thereof, and downwardly through the passages 9 to the chamber at the bottom of the section, and thence out through the openings 10.

Aradiator constructed of the sections described will have decided advantages with respect to heating efliciency.

We claim:

1. A radiator section havinga. U-shaped partition therein forming a middle up-fiow passage provided with an inlet at its lower end and outer down-flow passages communicating with said passage at its upper end and provided with a separate outlet spaced below said inlet and partition.

2. A radiator section having a U-shaped partition therein forming a middle up-fiow passage and outer down-flow passages communicating with said passage at its upper end, and a condensation chamber below the said partition, the up-fiow passage having an inlet at its lower end above the bottom of said partition, and the condensation chamber having an outlet below said partition.

3. A radiator section having a U-shaped partition therein, the bend of the partition being located toward the bottom of the section andthe upper ends of, the partition'terminating short of the top of the section, said partition forming a middle up-fiow passage and two lateral down-flow passages, the section having an inlet into the lower end of said middlepassage and an outlet at the bottom from said lateral passages.

4:. A radiator section having a middle 1011- A gitudinal up-fiow passage, and outer longitudinal down-flow passages communicating at their upper ends with said middle passage, said middle passage having a trapped outlet at the bottom thereof, into the lower part of the section.

In testimony whereof we do our signatures in presence of two witnesses.

MOSES L. FOOTE. WILLIAM M. KINGSBURY. Witnesses:

P. BIGLIsEN, R. C. CARPENTER.

copies of this {latent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

